package demo08;

public class Mouse implements USB { // 鼠标是一个USB设备
    @Override
    public void close() {
        System.out.println("关闭鼠标...");
    }

    @Override
    public void open() {
        System.out.println("打开鼠标...");
    }

    public void click() {
        System.out.println("鼠标点点点...");
    }
}
